Patents by Inventor Pang Wu
Pang Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8737936Abstract: An amplitude modulation circuit in a polar transmitter includes a digital-to-analog converter (DAC), a filter, a gm stage, and a calibration module. The DAC is arranged to be coupled to an amplitude modulation signal input in a normal mode. The filter is coupled to the DAC, and the gm stage is coupled to the filter. The calibration module has an input coupled to the gm stage, and an output coupled to a node on a path between the DAC and the gm stage. A method for calibrating an amplitude offset in the polar transmitter includes: generating an amplitude offset calibration signal according to an amplitude modulation signal generated from the gm stage; and transmitting the amplitude offset calibration signal via the output of the calibration module to a node on a path between the DAC and the gm stage so as to calibrate the amplitude offset.Type: GrantFiled: October 23, 2011Date of Patent: May 27, 2014Assignee: Mediatek Inc.Inventors: Hsin-Hung Chen, Hsiang-Hui Chang, Chun-Pang Wu, Yung-Yu Lin, Jong-Woei Chen
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Patent number: 8719687Abstract: A computer-implementable method for creating a summary video with depth information, comprising: recognizing moving objects from the input original video; generating an animated moving object cutout for each of the recognized moving objects by duplicating and stacking successive frames in the input original video containing images of the respective moving object; constructing a scene background by using texture of scenes in the input original video and estimating any missing portion; rendering a Dynamic 3D Scene by using depth information of foreground objects in the input original video and the scene background to create a three-dimensional scene and overlaying the animated moving object cutouts on to the three-dimensional scene according to their respective longitude, latitude, and depth locations in the three-dimensional scene; and synthesizing the summary video, by using the Dynamic 3D Scene.Type: GrantFiled: December 23, 2011Date of Patent: May 6, 2014Assignee: Hong Kong Applied Science and Technology ResearchInventors: Tai Pang Wu, Zhiqian Li, Xiao Zhou, Chun Man Lawrence Mak
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Patent number: 8717100Abstract: Apparatus and methods for capacitive load reduction are disclosed. In one embodiment, a power amplifier system includes a power amplifier configured to amplify a radio frequency (RF) signal of a first frequency and an envelope tracker configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The power amplifier system further includes an inductor electrically connected between the power amplifier and the envelope tracker and a capacitor electrically connected between the power amplifier and the envelope tracker. The capacitor and the inductor are configured to have a resonance near the first frequency.Type: GrantFiled: March 13, 2012Date of Patent: May 6, 2014Assignee: Skyworks Solutions, Inc.Inventors: Russ Alan Reisner, Daniel Lee Kaczman, Yu-Jui Lin, Andy Cheng Pang Wu
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Publication number: 20140107294Abstract: An extended film and a manufacturing method thereof are provided. The extended film includes a poly(lactic acid) and a block copolymer, wherein the block polymer includes a first block, a second block and a third block that connected with each other by chemical bonds. The extended film is formed by steps of mixing poly(lactic acid) and the block copolymer to form a mixture, compressing the mixture to form a board body and extending the board body to form an extended film, thereby forming an extended film having properties of high thermal-resistance and high transparency, the film thus obtained is applicable for packaging use.Type: ApplicationFiled: December 26, 2012Publication date: April 17, 2014Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chien-Pang WU, Jyh-Horng WU, Kuo-Chen SHIH, Chi-Yuan HUNG, Chia-Hao LI, Yao-Zu WU, Chuh-Yung CHEN
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Patent number: 8564590Abstract: Processes and techniques for imparting three-dimensional visual characteristics to images in a two-dimensional space are described. In one implementation, a graphical image is received in a two-dimensional space (e.g., a user interface on a computing device). A shape palette is presented to a user, the shape palette comprising a visual representation of three-dimensional visual information. Based on user markup of the shape palette, three-dimensional visual information is extracted from the shape palette and correlated with the graphical image. The three-dimensional visual information is processed to render the graphical image with three-dimensional visual characteristics.Type: GrantFiled: June 29, 2007Date of Patent: October 22, 2013Assignee: Microsoft CorporationInventors: Tai-Pang Wu, Chi-Keung Tang, Michael S. Brown, Heung-Yeung Shum
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Publication number: 20130163961Abstract: A computer-implementable method for creating a summary video with depth information, comprising: recognizing moving objects from the input original video; generating an animated moving object cutout for each of the recognized moving objects by duplicating and stacking successive frames in the input original video containing images of the respective moving object; constructing a scene background by using texture of scenes in the input original video and estimating any missing portion; rendering a Dynamic 3D Scene by using depth information of foreground objects in the input original video and the scene background to create a three-dimensional scene and overlaying the animated moving object cutouts on to the three-dimensional scene according to their respective longitude, latitude, and depth locations in the three-dimensional scene; and synthesizing the summary video, by using the Dynamic 3D Scene.Type: ApplicationFiled: December 23, 2011Publication date: June 27, 2013Applicant: Hong Kong Applied Science and Technology Research Institute Company LimitedInventors: Tai Pang Wu, Zhiqian Li, Xiao Zhou, Chun Man Lawrence Mak
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Publication number: 20130158252Abstract: An enterosoluble and intestinal-enzyme-biodegradable material is provided. The enterosoluble and intestinal-enzyme-biodegradable material includes a modified amylopectin, wherein at least one of hydrogen atoms is replaced by —CO—(CH2)n—COOH (n is 2-4) and the modified amylopectin has an acid value of 35-180 mg KOH/g. The disclosure also provides a method for preparing an enterosoluble and intestinal-enzyme-biodegradable material.Type: ApplicationFiled: April 2, 2012Publication date: June 20, 2013Inventors: Chien-Pang WU, Jyh-Horng Wu, Su-Jane Lo
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Patent number: 8385235Abstract: An exemplary embodiment of a full division duplex system comprises a receiver, a transmitter and an auxiliary circuit. The receiver receives an inbound RF signal of a first band to generate an inbound baseband signal, and the transmitter up converts an outbound baseband signal by an oscillation signal to generate an outbound RF signal of a second band for transmission. The auxiliary circuit calculates leakages from the outbound RF signal to generate a blocker replica, in which a LNA is coupled to a non-conductive coupling path extended from the input of receiver to collect leakages from the outbound RF signal to produce an induction signal. The induction signal is down converted to perform an adjustment, and thereafter up converted again to generate the blocker replica. In this way, the inbound baseband signal is generated from a subtraction of the inbound RF signal and the blocker replica.Type: GrantFiled: July 2, 2010Date of Patent: February 26, 2013Assignee: Mediatek Inc.Inventors: Chinq-Shiun Chiu, Chun-Pang Wu
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Patent number: 8315559Abstract: A transmitter for transmitting and calibrating a phase signal and an amplitude signal. The transmitter comprises a phase modulation path, an amplitude modulation path, and a control unit. The phase modulation path transmits the phase signal. The amplitude modulation path transmits the amplitude signal. The control unit delays the signal on at least one of the phase modulation path and the amplitude modulation.Type: GrantFiled: October 17, 2011Date of Patent: November 20, 2012Assignee: Mediatek Inc.Inventors: Hsin-Hung Chen, Hsiang-Hui Chang, Chun-Pang Wu
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Publication number: 20120235737Abstract: Apparatus and methods for capacitive load reduction are disclosed. In one embodiment, a power amplifier system includes a power amplifier configured to amplify a radio frequency (RF) signal of a first frequency and an envelope tracker configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The power amplifier system further includes an inductor electrically connected between the power amplifier and the envelope tracker and a capacitor electrically connected between the power amplifier and the envelope tracker. The capacitor and the inductor are configured to have a resonance near the first frequency.Type: ApplicationFiled: March 13, 2012Publication date: September 20, 2012Applicant: SKYWORKS SOLUTIONS, INC.Inventors: Russ Alan Reisner, Daniel Lee Kaczman, Yu-Jui Lin, Andy Cheng Pang Wu
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Publication number: 20120149830Abstract: A polyester film is described, including a first polyester and a second polyester. The weight ratio of the first polyester to the second polyester ranges from 1:1 to 1:3. The glass transition temperature of the first polyester is higher than 140° C. and that of the second polyester is lower than 140° C.Type: ApplicationFiled: November 22, 2011Publication date: June 14, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jyh-Horng Wu, Cheng-Hsing Fan, Ming-Tsong Leu, Chia-Hao Li, Yao-Tsu Wu, Chien-Pang Wu
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Patent number: 8169248Abstract: A signal processing circuit includes: a phase modulating path arranged to adjust a phase component of an input signal to generate an adjusted phase component such that a phase difference of the input signal falls within a target phase difference range; and an amplitude modulating path arranged to exchange a sign of an amplitude component of the input signal corresponding to the phase component to generate an adjusted amplitude component when the phase modulating path adjusts the phase component.Type: GrantFiled: March 20, 2011Date of Patent: May 1, 2012Assignee: Mediatek Inc.Inventors: Hsin-Hung Chen, Chun-Pang Wu, Ping-Ying Wang
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Patent number: 8137612Abstract: The present invention provides an apparatus for manufacturing stoichiometric Mg2Ni compound applicable to industry and capable of manufacturing continuously. The apparatus mainly comprises: a vacuum chamber, comprising a material feeding tube; a first crucible, set in the vacuum chamber; a heating device, set on the first crucible; a stirring device, set in the vacuum chamber, and above the first crucible; and a second crucible, set in the vacuum chamber, and on one side of the first crucible. Through this apparatus, a stoichiometric ?-phase Mg2Ni hydrogen storage compound with an exactly atomic ratio of 2:1, without other phases, and with excellent hydrogen absorption-desorption dynamics is given and the rest waste magnesium-rich liquid can be recycled.Type: GrantFiled: March 16, 2009Date of Patent: March 20, 2012Assignee: Chung Shan Institute of Science and Technology, Armaments Bureau, M.N.DInventors: Yuan-Pang Wu, Hui-Yun Bor, Cheng Yang, Ming Han Liu
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Publication number: 20120040630Abstract: An amplitude modulation circuit in a polar transmitter includes a digital-to-analog converter (DAC), a filter, a gm stage, and a calibration module. The DAC is arranged to be coupled to an amplitude modulation signal input in a normal mode. The filter is coupled to the DAC, and the gm stage is coupled to the filter. The calibration module has an input coupled to the gm stage, and an output coupled to a node on a path between the DAC and the gm stage. A method for calibrating an amplitude offset in the polar transmitter includes: generating an amplitude offset calibration signal according to an amplitude modulation signal generated from the gm stage; and transmitting the amplitude offset calibration signal via the output of the calibration module to a node on a path between the DAC and the gm stage so as to calibrate the amplitude offset.Type: ApplicationFiled: October 23, 2011Publication date: February 16, 2012Inventors: Hsin-Hung Chen, Hsiang-Hui Chang, Chun-Pang Wu, Yung-Yu Lin, Jong-Woei Chen
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Publication number: 20120033719Abstract: A transmitter for transmitting and calibrating a phase signal and an amplitude signal. The transmitter comprises a phase modulation path, an amplitude modulation path, and a control unit. The phase modulation path transmits the phase signal. The amplitude modulation path transmits the amplitude signal. The control unit delays the signal on at least one of the phase modulation path and the amplitude modulation.Type: ApplicationFiled: October 17, 2011Publication date: February 9, 2012Applicant: MEDIATEK INC.Inventors: Hsin-Hung Chen, Hsiang-Hui Chang, Chun-Pang Wu
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Patent number: 8073406Abstract: An amplitude modulation circuit in a polar transmitter and a method for calibrating amplitude offset in the polar transmitter are provided. The amplitude modulation circuit includes a digital-to-analog converter (DAC), a low pass filter (LPF), a gm stage, and a calibration module. The DAC is coupled to an amplitude modulation signal input. The LPF is coupled to the DAC, and the gm stage is coupled to the LPF. The calibration module has an input coupled to the gm stage, and an output coupled to a node on a path between the DAC and the gm stage. The method includes: generating an amplitude offset calibration signal according to an amplitude modulation signal generated from the gm stage; and transmitting the amplitude offset calibration signal via the output of the calibration module to a node on a path between the DAC and the gm stage so as to calibrate the amplitude offset.Type: GrantFiled: December 16, 2008Date of Patent: December 6, 2011Assignee: Mediatek Inc.Inventors: Hsin-Hung Chen, Hsiang-Hui Chang, Chun-Pang Wu, Yung-Yu Lin, Jong-Woei Chen
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Patent number: 8064848Abstract: A transmitter for transmitting and calibrating a phase signal and an amplitude signal. The transmitter comprises a phase modulation path, an amplitude modulation path, and a control unit. The phase modulation path transmits the phase signal. The amplitude modulation path transmits the amplitude signal. The control unit delays the signal on at least one of the phase modulation path and the amplitude modulation.Type: GrantFiled: October 27, 2008Date of Patent: November 22, 2011Assignee: MediaTek Inc.Inventors: Hsin-Hung Chen, Hsiang-Hui Chang, Chun-Pang Wu
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Publication number: 20110163790Abstract: A signal processing circuit includes: a phase modulating path arranged to adjust a phase component of an input signal to generate an adjusted phase component such that a phase difference of the input signal falls within a target phase difference range; and an amplitude modulating path arranged to exchange a sign of an amplitude component of the input signal corresponding to the phase component to generate an adjusted amplitude component when the phase modulating path adjusts the phase component.Type: ApplicationFiled: March 20, 2011Publication date: July 7, 2011Inventors: Hsin-Hung Chen, Chun-Pang Wu, Ping-Ying Wang
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Publication number: 20110140790Abstract: A frequency synthesizer includes a fractional N phase locked loop (PLL), a sigma delta modulator, a phase adjustor and an adjust signal generator. The fractional N PLL generates an output signal according to an adjusted reference signal. A frequency of the output signal is a multiple of a frequency of a reference signal. The fractional N PLL includes a crystal oscillator generating the reference signal and a divider frequency dividing the output signal according to the multiple to generate a feedback signal. The sigma delta modulator generates a control signal to adjust the multiple accordingly. The phase adjustor adjusts a phase of the reference signal according to an adjust signal to generate the adjusted reference signal. The adjust signal generator generates the adjust signal according to an accumulation result of the sigma delta modulator.Type: ApplicationFiled: May 24, 2010Publication date: June 16, 2011Applicant: NATIONAL TAIWAN UNIVERSITYInventors: Chun-Pang Wu, Hen-Wai TSAO, Jing-Shown WU
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Patent number: 7932763Abstract: A signal processing circuit includes: a first operation circuit for receiving a phase component of an input signal, and generating an adjusted phase component and at least one weighting factor according to the phase component of the input signal; a second operation circuit, coupled to the first operation circuit, for receiving the adjusted phase component and converting the adjusted phase component into a frequency component corresponding to the adjusted phase component; a third operation circuit, coupled to the first operation circuit, for receiving an amplitude component of the input signal, and adjusting the amplitude component according to the at least one weighting factor to generate an adjusted amplitude component; and a fourth operation circuit, coupled to the second operation circuit and the third operation circuit, for generating an output signal according to the frequency component and the adjusted amplitude component.Type: GrantFiled: July 29, 2009Date of Patent: April 26, 2011Assignee: Mediatek Inc.Inventors: Hsin-Hung Chen, Chun-Pang Wu, Ping-Ying Wang